Adjustable pulverizer.



O. GHRISTIANSON.

h ADJUSTABLE PULVERIZER. I APPLICATION FILE-D JUNE 15. 1911.

1,0175383. Patented Feb. 13, 1912.

2 $HEETS-SHEET 2.

- 2': K 1 112 50 H3 30 7 I :12

MUTNESSES: UVMENTQR A-iTaR/vEY UNITED STATES PATENT OFFICE.

OSCAR CHBISTIANSON, F SUGAR GROVE, ILLINOIS.

j ADJUSTABLE PULVERIZER.

Application filed June 15, 1911: Serial No. 633,399l

To all whom it may concern:

cation.

to provide a machine capable of not only pulverizing the soil-,but alsoevening out ridges, forming ridges, or hilling up the ground; to providefor more universal adaptation to thevarious uses to which implements ofthis class have heretofore been put, or to combine in one machine theoperations of several types of machmes; to provide a constructionwherein the gangs 2c of disks, blades or cutters maybe convenientlyshifted or adjusted during the operation of the machine, and to provldea simple and rigid form of construction entailing a minimum of expensefor the variety. of work it is adapted to accomplish.

Another object of the invention is to provide convenient and simplemeans for shifting or reversing or arranging the disk or concavity ofdisks or blades relative to each other in each individual gang of disksand of the disks of one gang of disks relative to the disks of othergangs in the same implement.

The invention further contemplates improvements in the adjustments ofthe draft 35,to enable the implement to work evenly and thoroughly.

Other minor objects and advantages to be derived from the presentimprovement will appear from the subjoined detail de scription, and withthe foregoing in view the invention consists in the novel construction,combination and arrangement of parts hereinafter described in detail,illustrated in the accompanying drawings and particularly pointed out inthe appended claims.

In the drawingsFigure; 1 is'a "plan view of a farm implement or machineembodying my invention, showing the gangs of pulverizer sets in oneseries of adjustments. Fig.

0 2 is a view similar to Fig. 1, showing different adjustments, with thedrivers seat and draft rigging broken away to more clearly show certaindetails. Fig. 3 is a left end elevation of the machine, the shafts and 5gangs of pulverizer-blades being arranged parallel with eachotherinstead of at angles the parts illustrated in said Fig. 3. Fig. 4

is a section taken substantially on line 44 taken substantially on line6-6 of Fig. 4.

v Fig. 7, is a vertical section taken, substan- My invention relates topulverlzing ma- 10 chines, and the objects ofthe invention are tially online 7 7 of Fig. 4.. Fig. 8 is a vertical section taken substantiallyon-line 88 Specification of Letters Patent. Patented Feb. 13, 1912.1

as in Figs. land 2,to more clearly'show Be it known that I, OSCARCHRIsnANsoN,

a citizen of the United States, residing at; Sugar Grove, in the countyof Kane andi 5 State of Illinois, have invented certain new; and usefulImprovements in Adjustable Pulverizers, of which the following is aspecifi- 5 of Fig. 4. Fig. 9 is an enlarged inner face view of one ofthe sections of a blade-holdinghub foreach set of blades or diskscomposing a gang of sets. Fig. 10 is a section taken on line 10*10 ofFig. 9.

:Referring in detail to the several views the frame of the machine orimplement shown as the present embodiment of my invent on, consists .ofa pair of angle-irons,

one thereof forming the front'and sides or 7 ends by being bent twice toform the ends 3 and 4 the intermediate portion constituting a frontportion 2 of the frame. To the extremities of the end portions of theframe are riveted at 5 and 6 the ends of a straight' angle iron 7 whichconstitutes the rear portion of the frame. Spanning the intermediateportion of the frame from its front to its rear are a pair of metal bars8 and-9 which serve as supports for two of the four gangs of pulverizerblades or disks employed in my invention as shown in Figs. '1 and Thebars 8 and 9 are preferably formed of a single bar of metal bent uponitself to form the two bars 8 and- 9. At the return bend this single baris secured in any suitable manner to the forward. portion 2, as byrivets 10, 10 to the vertical flange of the angle iron of which thefront and sides or ends of the frame is made. The form of the bar 89 incross section is shown at 8 in Fig. 4. These bars stand on edge, arecaused to rest on the horizontal flanges of the frame angle-iron orirons, and at the rear frameportion 7 they are likewise secured to thevertical flange by being bent at 11 and 12 parallel with and against thevertical. flange of the part 7 to which said bent portions are laterallyto form lugs 16 and 17. These lugs pass through suitable perforations inthe bars 8 and 9, are threaded and provided with nuts 18 and 19- whichsecure the lugs to the bars 8 and 9 as shown in Figs. 1 and 2. From thesaid lugs the spring-rods curve upwardly to the seat 20 which may bemounted adjustably in any suitable manner at the top of the curve asindicated in Fig. 3. Immediately in the rear of the seat the rods areformed into loops 21 and 22 which add to the resiliency of the seatsspringsupport. At the rear portion of the frame the spring-rods arefastened to the iron 7 in the same manner as at the front by beingformed with threaded lugs 23 and 24 which are fastened to the verticalflange of the iron 7. In order to steady these springsupports laterallyI spread the rods at the rear or bend them laterally away from eachother as shown in Figs. 1 and 2 to widen the base of the support at therear. In the rear of the seat 20 the spring-rods are yoked together bymeans of a cross-bar 25 which is in the form of a clamp consisting of apair of members bolted together as at 26 and 27 against opposite sidesof said rods. Immediately in front of the forward fastenings for thespring-rods I mount a footrest 28 on the bars 8 and 9.

As shown in Fig. 3 the angle iron 2, 3 and 4 in addition to being bentin a horizontal plane to form the end or side portions referred to, hasthe latter bent upwardly at 29 and 30 for the purpose of elevating thefront portion 2, the draft attachment and the foot-rest above thehorizontal plane of the balance of the frame and the bearings for thedisks, disks, pulverizerblades, cutters, or diggers.

To the front of the frame are bolted, or otherwise suitably fastened, aseries of clevises31 each provided with the usual ver-' tical row ofholes 32 for the proper adjustment of the clcvis link pins 33 holdingthe link or loop 34. pairs of these clevises are provided, each pairbeing connected with a cross-tree 38 by means of chains 35 and 36 whichcross each other from the links 34 to the tree 38 in a ring 37. Thetrees 38 are connected by an equalizer bar 39 which is adjustablelongitudinally with respect to the trees 38 by means of a toothed orserrated rack 40 engaged by a coupler-clamp 41 pivoted at 42 to dasuitable bracket on the equalizer bar en 2.

43 represents bolts by means of which the members 41 are clamped againstthe serrations on the rack 40.

Within the frame composed ofthe sides 2, 3, 4 and 7 are mounted fourgangs of pulverizer blades or disks, each gang being shown in thepresent instance as consisting of five sets of blades, bits, cutters ordig- As shown in Fig. 1 two,

gers, a side view of one of which sets is shown in Fig. 5. These setsare formed of double blades 49 and 50, or in one piece of metal, with abase'yoke or crosspiece at the butt-ends of the blades 49 and 50. Thisbase or butt-end portion 51 is clamped between hub-disks 52 and 53having hubs 54 and 55, as shown in Fig. 4. These hubs and disks arearranged in pairs the members of which are substantially identical andhave recessed adjacent faces such as the for mation seen in the Figs. 9and 10. In each of these disks is a series of recesses 56, 57, 58 and 59each of a depth to receive substantially one-half the thickness of thehub portion 51 of the blades, the remaining half of the thickness beinglodged in the corre-. sponding recess of the companion member of thehub-set. The formation of the recesses leaves radial ribs 60, 61, 62 and63 which lend lateral support to the blades 49 and 50, four such pairsbeing provided for as indicated in Fig. 5. Inner recess walls 64, 65, 66and 67 support the blades against longitudinal movement inwardly andagainst outward movement the base portion 51 of the blades is supportedby lugs 68, 69, 70, and 71. The entire series of sets of eight blades orfour double blades forming each of the gangs of pulverizers, labeled 45,46, 47 and 48, is, as shown in Fig. 4 clamped together upon a shaft 72for which octagon openings 73 are formed through the hubs and disks. theshaft being the same in crosssection. Nuts 74 and 75 on the ends of theshaft bind the whole series of five sets to gether on the shaft. Betweeneach of said nuts and the outermost hub at each end is interposed asleeve or bushing labeled 76 at one end and 77 at the opposite end.These bushings serve as bearing surfaces for the shaft. The bushing 76is journaled in a bearing-box 78 which is pivotallv mounted on the end 3or 4 of the frame with the aid of a pivot-bolt 79 which passes throughthe bearing-box laterally of the shaft-bearing, and through thehorizontal flange of the angle iron of the frame. The bushing 77 at theopposite end of the shaft, is mounted in a bearing-box 80 having anupwardly projecting ear 81 having a hole or eye 82 therethrough, and adownwardly projecting ear 83 having an eye or hole 84 therethrough. Tothese ears are attached, as will more fully appear hereinafter, theinner ends of rods which connect the shafts with the operating levermechanism by means of which the gangs of pulverizer blades are broughtinto or out of parallelism with the sides 2 and 7 ofjthe frame. The ears81 and 83 are provided for one end of each of the shafts 72, being thebearing at that end of the shaft which is moved angularly by theoperating-lever. The bearing for the opposite end of each of the outeror forward shafts is the pivoted bearing 78 andlabeled 87 and 88in'Figs. 1, 2 and 4. Each of these curved angle irons is provided with aforward slot, which is labeled 85 at the left side and 86 at therightside in Figs. 1 and 2.

These slots conform to the curvature of the arc of swing of the gang 45at the left and the gang 48 at the right. Similar rear slots 85' and 86are provided for the rear gangs 46 and 47. In each instance the slot isengaged by the car 81 extending upwardly from the bearing 80. The latteris supported on a fiat bar of metal 89 (Figs. 3, 4 and 7) which in eachinstance is curved in conformity with the double curved and slottedangle iron engaged by the ear 81. The lower iron 89 is likewise providedwith curved slots identical with the slots 85, 85, 86 and 86, and theslots in said iron 89 are engaged by the lower ears 83 of each of theswinging bearings. The slots for the upper ear 81 and lower ear 83 areindicated at 85 on each of the members 87 and 89 in Fig. 7 where anenlarged section of the upper and lower slide-bearing members for theboxes 80 is shown. Each of the boxes 78, pivoted to the ends 3 and 4, issupported vertically for their horizontal pivotal movement by a bracket90 shown on an enlarged scale in Fig. 6. This bracket is a strap ofmetal bent four times at an angle to form a space between the angleiron' portion 3 and the bearing part. of the bracket as well asfastening ears which are riveted to the horizontal flange of saidangle-iron at 91 and 92. As stated, the inner gangs of pulverizer sets46 and 47 are mounted pivotally on the bars 8 and 9, and the pivotalarrangement for these inner bearings is shown to the right in Fig. 4.Here, too, the shaft is provided with a bearing bushing having acircular periphery and an octagon opening for the shaft. In thisinstance the bushing, 93, is interposed between the hubs of the two setsof blades next to the inner or pivoted end of the gang. This bushing ismounted in a bearing-box 94 which has a bifurcated upper portion, or aslot 96 adapted to receive the supporting-bar for the pivoted end of,the gang 46 or the bar 9 for the corresponding end of the gang 47. Eachof these slots has its sides beveled divergently from its middleportion, as shown best in Fig. 2, to permit the necessary angularmovement of the bearing-block or box 94. The box 94 is suspended on ahorizontal pivot 95 (Figs. 4 and 8 for which an oblon hole 95 is formethrough thejaws or bifurcated porside of the middle of the machine. -2,on the other hand, the blades are uniformly which may tion of said box,or, as shown in Fig. 8, through the bar 8 inthe one case and the bar 91n the other, to permit the pivot pin to swing with. the bloc As shownin Figs. 1 2 and 4 the blades or bits are ofconcave formation, orcurved, and the hub-construction and method of assembling the hubs andblades of each gang on its shaft makes provision for convenient reversalof direction of curvature or concavity to dish or concave the bladeseither inwardly or outwardly as to each gang, or

1 to alternate the curvatures in the individual gang should this befound advantageous in some instances. In Fig. 1 the blades of the setsof gangs 45 and 48 are dished or curved inwardly while the blades of theintermediate gangs 46 and 47 are curved outwardly.

. This arrangement is designed to at once pulverize the earth and tomove it laterally either to hill up the ground or form a ridge or tolevel out ridges. y In the latter event each gang of blades would beover a ridge and the depressions to be filled in would be between therespective pairs of gangs at each In Fig.

formly dished outwardly from the inner ends of the inner gangs, and withthisar- ,rangement the machine is adapted to level v out a ridge ofgreater width, or, in case'the land is level and it is desired to formelevated beds or ridges, the blades may be unireversed to throw theearth inwardly from both sides of the machine. 1

The bearing 80 at the swinging end of each gang may be moved eitherforwardly -or rearwardly by a given .throw of a.lever 97 fortheleft-hand side and a lever 97 for the right-hand side. The levers 97and 97 are mounted on studs 98 and 98 on bearingbrackets 99 and 100secured to the frame side 2. These levers are provided with a usual formof quadrant having notches therein. The quadrants, 101, 101 may becastintegrally with the brackets (99 and 100) and are provided with theusual pawl or detent 102 connected with a finger-lever 103 by a rod 104.On the lower ends of the levers 97 and 97 are formed oppositelyextending crank-arms 105 and 106, in the ends and 108,. respectively, toeither or both of bearings 80.

In the arrangement shown in Figs. 3 and 7 a'rod 109 connects theear 83on the slidebearing 80 of the pulverizer gang 45 with" v the hole 108 onthe arm 106, andthe bearing 80 for the gang 48 is similarly connectedwith thearm 106 of'the lever at that side of be connected rods leadingto the of whichare formed eyes oropenings 107" in the same directionmoved to place the gangs at angles to each other.

In Fig. 2 the connections for the front gangs 15 and 18 are the same asin Fig. 1, and the rod 109 shown in Fig. 3 may represent the connectingrod. In Fig. 2, however, the rear" gangs 16 and 17 are connected throughthe upper, instead of the lower, ear 81 of each hearing, as well as withthe upper holes or arms of the levers in each instance. In Fig. 2 therod corresponding. to the rod 110 in Fig. 3 is, owing to its changedposition and directions of movement, labeled 111, and other variationsin connections between arms and bearings may be made.

\Vhile it is common to merely place gangs of disks or blades at anglesto each other for the purpose of pulverizing alone and leaving theground substantially unaffected so far as its elevations and depressionsare concerned, the abovedescribed arrangements and combinations of partscontemplate adaptation for the usual pulverizer work, and in additionthereto and in connection therewith the shifting of the soil, thusperforming at one operation and with the same machine several differentvarieties of soilworkings with a corresponding saving of time, saving inthe cost of machinery and its care, as well as saving storage room.

The blade interlocking hub sections are designed to hold circular disksas well as the separate blades shown, by providing the disks with thecentral portions formed as shown to be engaged by the hub-recesses. Thedivision of the work between four gangs of blades or disks and theprovision of a lever for each pair of gangs, facilitates very greatlythe shifting of the pulverizer blades while they are at work or in theground and makes it possible to adjust the gangs without first jackingup the ends of the machine.

In Fig. 1 is shown mud-guard attachments 112 and 113. Each of theseattachments is in the form of a bar of metal bent around the ends of theblades and having portions projecting between adjacent bladesets. Theseinward projections are designed to brush ofi clods of earth tending tostick to the blades or disks. The ends of these attachments, which maybe termed blade scrapers, are provided with eyes or loops adapted to befastened to stationary parts of the machine. One end of each scraper 112has its eye or loop at that end mounted on a reduced projecting portion114 of a bolt 79. A washer 115 is threaded on the saidreduced end, theeye of the scraper is then threaded on said reduced end, and this eye isfastened or held against displacement by a nut 116 which has threadedengagement with the outer end of the projecting portion 114. Theopposite end of the scraper 112 has its eye or loop fastened by a rivet118 (Fig. 4) held in a hole 117 (Fig. 7) on theear 81. The scrapers 113'are fastened in substantially the same manner but with slightmodifications owing to the difference in the form of structure to whichthey must be partly fastened. The lefthand end of the scraper 113 isshown broken away, but the loop at its broken-away end is also fastenedby a rivet 118 held in the bore 117 At its opposite end each scraper 113is fastened as shown in Fig. 4 to the right, namely on an upwardprojection 119 (Figs. 4 and 8) from the bearing 94, to which projectionthe scraper is secured by a screw 120.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a pulverizer, the combination with the frame ofthe machine, of a pair of gangs of pulverizer disks or blades pivoted attheir opposite ends to the sides of said frame, another pair of gangspivoted at the median draft line of the frame, a pair of slide-ways onwhich adjacent ends of the first men-.

tioned pair of gangs and opposite ends of the last mentioned pair ofgangs are movable angularly relative to each other, means for supportinga driver on said pulverizer, and means for adjusting all of said gangsfrom the drivers seat.

2. In a pulverizer, the combination of a frame, a pair of gangs ofpulverizer disks or blades, each having one of its ends pivoted to aside of said frame, a second pair of gangs having their adjacent endspivoted at the middle draft line of the machine, a pair of slide-ways onwhich the other ends of said gangs are angularly movable, a pair 'oflevers for moving the movable ends of said gangs and connections betweensaid levers and said last mentioned ends whereby the latter are moved ateach throw of said levers and means for reversing said connections toreverse the direction of movement of each gang without changing thedirections of movements of said levers.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

OSCAR CHRISTIANSUN.

Witnesses:

CHAS. Torr, M. C. ALLEN.

